<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <title>perspective</title>
    <style>
        .wrapper {
            width: 50%;
            float: left;
        }

        .cube {
            font-size: 4em;
            width: 2em;
            margin: 1.5em auto;
            transform-style: preserve-3d;
            transform: rotateX(-35deg) rotateY(30deg);
        }

        .side {
            position: absolute;
            width: 2em;
            height: 2em;
            background: rgba(255, 99, 71, 0.6);
            border: 1px solid rgba(0, 0, 0, 0.5);
            color: white;
            text-align: center;
            line-height: 2em;
        }

        .front {
            transform: translateZ(1em);
        }

        .bottom {
            transform: rotateX(-90deg) translateZ(1em);
        }

        .top {
            transform: rotateX(90deg) translateZ(1em);
        }

        .left {
            transform: rotateY(-90deg) translateZ(1em);
        }

        .right {
            transform: rotateY(90deg) translateZ(1em);
        }

        .back {
            transform: translateZ(-1em);
        }
    </style>
</head>

<body>
    <div class="wrapper w1">
        <div class="cube">
            <div class="side front">1</div>
            <div class="side back">6</div>
            <div class="side right">4</div>
            <div class="side left">3</div>
            <div class="side top">5</div>
            <div class="side bottom">2</div>
        </div>
    </div>
    <div class="wrapper w2">
        <div class="cube">
            <div class="side front">1</div>
            <div class="side back">6</div>
            <div class="side right">4</div>
            <div class="side left">3</div>
            <div class="side top">5</div>
            <div class="side bottom">2</div>
        </div>
    </div>
</body>

</html>